12953428 has 6 divisors (see below), whose sum is σ = 22668506. Its totient is φ = 6476712.

The previous prime is 12953419. The next prime is 12953431. The reversal of 12953428 is 82435921.

12953428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9560464 + 3392964 = 3092^2 + 1842^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12953393 and 12953402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1619175 + ... + 1619182.

Almost surely, 2^12953428 is an apocalyptic number.

It is an amenable number.

12953428 is a deficient number, since it is larger than the sum of its proper divisors (9715078).

12953428 is a wasteful number, since it uses less digits than its factorization.

12953428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238361 (or 3238359 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 12953428 is about 3599.0871064758. The cubic root of 12953428 is about 234.8523472659.

The spelling of 12953428 in words is "twelve million, nine hundred fifty-three thousand, four hundred twenty-eight".